Practically zero thus far. Bees strong enough. Hives NOT on OSR actually doing better, dandelion flow was the strongest I have known.
Very little nectar from the OSR even on perfectly good days. Early sycamores are giving a bit too, more than the OSR in those places where there is enough of it.
We have odd hives putting honey in the first super, but not much more than that so far, but we go onto the Smith hives as of Friday again and they may be different.
East wind off the north sea is never a good nectar wind, it just sucks the plants and soil bone dry in a short time. You could lose your hive tool down the cracks in the ground in some fields we have bees in, yet a month ago you could not even get around there it was so wet. The east wind desiccates the place.